Electrical switching device



-Aug.'21,1923.` v1,465,878Y

l. L. STANGER ELECTRICAL SWITCHING DEVICE Filed June 15. 1'921 2 sheets-sheen @L L A L in N INVENTOR A /64 L. Sm/V66 ATTORNEYS Il" TL,

Aug. 21, 1923. n 1,465,878

, l. L.. sTANGER i ELECTRICAL SWITCHING DEVICE Filed June 15.' 1921 2 sheets-sheet 2 n Wmv I Z7 f/vl/E/vro l f5 y IRAL. STA/vage @7g4/' 0*/1 am A TTOHNE V8 Patented Aug. 21, 1923.

UNITED s-'rArls PATENT OFFICE.

IRA LINWOOD STANGER, 0F MERCHANTVILLE, NEW JERSEY.

ELECTRICAL SWITCHING DEVICE.

Appunti@ med :une 15, 1921. seriai No. 477,698.

and State of New Jersey, have invented a new and Improved Electrical Switching Device, of which the following is a full, clear, andexact description.

This invention relates `to an electrical switching device, and has particular reference to a combined switch or cut-'out and fuse block in which the live parts are substantially entirely enclosed so that the danger of persons operating the switch coming in` contact with the live parts is reduced to a minimum. Y

Another object of the invention resides in the provision of means whereby the live parts above mentioned are substantially enclosed regardless of whether the switch is open or closed or in any position.

-A further object resides inthe provision of means whereby the fuses mounted in connection with this switch may be refilled and easily examined.

A still further object resides in the provision of means whereby in closing the switch the electrical circuit is not made until the lid-or cover is substantially entirely in place, so that if a fuse is blown no danger results, and in opening the switch the parts are separated before the cover or lid is moved any great distance, so that any arc formed by openingl the switch will not result in injury to the person operating it.

Another object resides in the particular construction and arrangement of parts which are hereinafter described and claimed and shown in the accompanying drawings.

The invention is shown in the drawings, of which- Figure,rv 1" is a plan view of the switch;

Figure 2 is a longitudinal section taken on the line 2 2 of Figurel;

Figure 3 is a transverse Vsection taken on the line 3-3 of Figure 1;

" Figure 4 is atransverse section of the lid or cover taken onthe line 4-4 of Figure l; Figure 5 is a perspective view of .the

device;

Figures 6 and 7.are longitudinal sections takenl through the cover, base and body portions, respectively of the switching device` whenused as a cut-out; and y Figures 8 and 9 are sectional views re,-v

spectively taken on the lines 8--8 and 9 9 of Figures 6 and 7.

As shown in the drawings, the preferred form of my invention comprises, as shown in Figs. -1 to 4 inclusive, a, base portion 1 in the form of a block or slab of any suitable insulating material. On the upper surface of this base portion are provided a plurality of recesses, such as 2, in which switch terminal clips, such as 3, are located. These clips are of any suitable well-known type and provided with the usual binding posts 4. Holes or apertures, such as 5, may be forme-d inthe base portion to receive wires leading to the binding posts 4.

)n top of the base portion l there is adapted to be .placed a body portion '6 of any suitable insulating material. This body portion is provided with a plurality of recesses 7 so disposed as to align themselves over the recesses 2 when the body portion is.l in position on theJ base portion. formed slots 8 extend from the recesses upwardly through the body portion to form a passage for other members of the switch to make contact with the clips 3. As seen in Fig. 2, 'there is a transverse wall 9 formed on each side ot' the switch between adjacent lchambers in which the clips 3 are located so that each clip is disposed in a separate compartment or chamber by itself and access .can behad thereto during the normal use of the switch only through the slots 8. lt will also be Seen that the body portion is provided with a curved Wall 9 which divides the body portion in half longitudinally.V These downwardly extending curved Walls are adapted to bear against a longitudinally projecting rib 10 on the base portion 1. Hinged to the body por-tion 6 is al cover portion 11 ot any suitable insulating material, and ivi-thin this cover or lid portion is dis-posed a plurality of switch knife blades 12. These are connected suitably to the lid portion and are provided with binding screws, such as 13. Apertures 14 eX- tend through the lid to the underside of the knife blades 1215er testing purposes. A fuse, such as 15, may extend between pairs ot' binding posts in the usual manner. The lid or cover 11 is provided with a longitudinally extending wall16 which is adapted to ex'- tend downwardly between the walls 9 on the body portion and engage with the rib 10 when the cover is in the closed position.

Suitabily when they are burned out.

This additional wall divides or acts as e barrier between the pairs of switch blades l2 on opposite sides ot the cover 'to provide en additional surety against injury to the operator when using the switch. This wall lo also acts as a barrier between fuses. Furthermore, the tact that the curved sloping walls 9 converge toward each other causes the well lo as it comes into the body portion o to be properly guided into position, A. transverse rib 17 at one end of the body portion 6 is adapted to engage with the corresponding xogroo-ve 'i8 in the cover and further secure an alignment of the parts., The body portion 6 is suitably held on to the base portion l by any suitable means, such es reteining screws 19. rlhe ribs or walls lo ertcnding'in opposite directions from the dividing wall lo also iiecilitete the enclosnreof the fuses to prespreading or the lia-nies therefrom A view oil Fig. i will clearly indicate that when the body portion 6 is in place on thel base l, the only possible way in which access rney be had to each ot' the terminal clips 3 is through the slots 8, end a consideration et? the proportions ot the clips 3 with respect to the knife bledes l2 indicate clearly than before these ports corne into electrical conq toet the cover, wl'lether hinged or not, isi substentially closed before this contact is inode: ll'f at thet time a fuse should blow, therefore, the denger of fire from the flannel of the explosion or 'from the spark being` formed when the switch is being opened, is substantially eliminated. Suitable circuit wires, such es 2d, may be inserted through the epertures 5' above mentioned' to connect proper parte to the circuit. The cover is also provided with ribs 21 extending` lon-A gitndinally.thereoi2 which are adapted to lio egeinst the edges 22 extending longitudi-y neily along the upper portion oi the body portion adjacent the slots 8. These ribs also ere adapted to prevent the fuses from slipping into the spece which is occupied by the upper portion of the body adjacent the slots d when the cover is disposed on the bodyf,

portion. These edges by their interengagement tend to provide a very rigid contact device which when closed is held properly end rigidly in assembled position.

ln Figs. 6 to 9, inclusive, I show a similar ii'orrn of switch which may be used as a cutonty in which t ie cover is not hinged' to the body portion. "In this case, as shown lin incense Fig.. 2' ll provide, rete c` embers 23 terminal clips 2d eccess can be had as ebove mentioned, sepain which each one of the are located end to which only through the slots 25. The bod f portion 26 is held on the base portion 27 y means of screws 28. The cover portion 29 is provided with knife blades 8O end binding screws 3l between which "fuses 32 nia' be suitably disposed. rl`he cover is provi ed with a dividing well 33 and with longitudinally extending spacing ribs 3e oda ted to engege with the upper edge 35 of the ody portion 2o.

Referring beck to Fig. 2, it will be observed thet the slots 8 are vsoinewhet curved, as et 9, to permit the proper entry 'of the blades i2 thereinto when the cover ll. is hinged on thebody portion 6.

This switch, therefore, it will be observed, is mede in two parts, one part being formed of the base and pockets or body portion which is disposed rather substantially around the `live contact, and the other part being; composed oi2 the fece or cover contain ing the switch blade end fuses. rThis whole device is nsed es s. bon switch. The insuloting parts of the switch may be molded, if desired, although any suitable insulating materialcen be used.' The switch, theretore, cen be constructed so that it is not necessary to piece it in e bon or under cover in order to prevent the operator from com-1 ingd in. contact with the live perte.

What ll cleirn is:

A swinchinoI device comprising a base portion, o, body portion adapted to be disl posed on seid bese portion and having formed therein two sets of seperately/1 spaced chambers, a switching;n element in eachl of said chambersq seid body portion having relatively long1 nerrow slots therein leading to erich of said chenibers, the body portion orrned with e longitudinally. extending ree cess or passbge between each set of charm bers, n, cover odapted to co-operate with the body portion, switching elements on the cover adapted to entend through the slots in the body portion to co-operate with the switching elements in the chambers, anda dividing wall disposed on the cover between the` switching' elements' thereon and adapte ed to extend into the longitudinally extend-4 ing groove or recess in thel body portion to electrically and mechanically separate the two halves of the body portion.

inn LrNwooD srANeER.

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